save the day to produce a good result when a bad result was expected 在预计情况不乐观的情况下出现了好结果;反败为胜，转危为安，化险为夷 The team was expected to lose, but Sally made three points and saved the day. 这个队本来是要输的，可是萨莉得了三分，使局面转败为胜。 If your solution wo